Science and Technology PDF Download

Science and Technology PDF Download

GK PDF

Science and Technology PDF Download

हेलो दोस्तों , आज हम आपके लिए लाये हैं science and technology के ढेरों वन लाइनर और उनके उत्तर जो आपके किये हर एग्जाम  लाभकारी होंगे क्योंकि आजकल science and technology से सम्बंधित प्रश्न सामान्य ज्ञान के नाम से हर परीक्षा में आते  हैं।

ये PDF काफी बड़ी है इसलिए इसे दो भागों में बाँट दोनों ही पीडीऍफ़ आप नीचे के डाउनलोड लिंक पर क्लिक करके डाउनलोड कर सकते हैं।

इस बुक में circulatory system , the digestive system , the endocrine system, the immune system and Integumentary system, muscular system, the nervous system, the reproductive system, the skeletal system, the excretory system, the system of unit measurement , fundamental forces of nature , Motion and force – linear and rotational motion, Gravitation etc और भी बहुत से टॉपिक को कवर किया गया है।

इस पीडीऍफ़ के कुछ वन लाइनर्स इस प्रकार हैं।

Blood Vessels

  • Arteries – carry pure blood, from the heart to body except for Pulmonary Artery.
  • heart directly pumps blood to the artery
  • Arota is the largest artery of the heart
  • Veins – carry impure blood from body to heart, except pulmonary veins
  • Capillaries – tiny blood vessels that connect arteries to the veins.

 

Skin and its tissue

  • The largest organ of the body.
  • functions
    • maintain the homeostasis
    • regulates body temperature
    • Prevents water loss from deeper tissues.
    • Houses  sensory receptor
    • Synthesizes various biochemicals ( Vitamin – D )
    • Excrete small quantities of wastes.
    • as a diagnostic tool.
  • Sweat Glands
    • Widespread throughout the skin
    • lined with sweat- secreting  epithelial cells
    • 650 sweat glands per square inch of skin.

 

Immune System

  • Protect the body against disease
    • recognizing the presence of an infection.
    • containing the infection and working to eliminate it.
    • regulating itself so that it does not damage the body.
    • remembering pathogens to prevent the disease from recurring.
  • Immune system cells are white blood cells or leukocytes.

 

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